raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:90002

Undifferentiated connective tissue syndrome

Synonyms: UCTD

Type
Disease
Group
Disorder
Status
active

A rare systemic autoimmune disease characterized by the presence of signs and symptoms suggestive of a systemic autoimmune disease that do not fulfil the existing classification criteria. The main clinical manifestations are arthritis with arthralgia, Raynaud's phenomenon, xerostomia, xerophthalmia, and leukopenia, while neurologic or renal involvement are virtually absent.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enUndifferentiated connective tissue syndromeUCTD
frConnectivite indifférenciée
deUndifferenzierte Kollagenosen= en
esEnfermedad indiferenciada del tejido conectivoEnfermedad del tejido conectivo no diferenciada · Síndrome del tejido conectivo no diferenciado · Síndrome indiferenciado del tejido conectivo
itConnettivite indifferenziata
nlOngedifferentieerd bindweefselsyndroom= en
ptSíndromes do tecido conjuntivo, indiferenciados
plZespół niezróżnicowanej tkanki łącznej= en
csNediferencovaný syndrom pojiva= en
ukНедиференційований синдром сполучної тканини= en
zh未分化结缔组织综合征= en
trFarklılaşmamış bağ dokusu sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M35.8NTBTattributedvalidated
ICD-11LD28.YNTBTattributedvalidated
MONDO0019527Evalidated
MeSHD000074079Evalidated
UMLSC0409999Evalidated
MedDRA10071575Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

3 annotations · validated 2024-02-16
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0034093Anti-Ro52/TRIM21 antibody positivity
HP:0020151Anti-dsDNA antibody positivity
HP:0034076Anti-ribosome Po antibody positivity
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Sources for this card